Wall base



FIG. 1 is a perspective view of a wall base showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left side elevation view thereof; and

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a perspective view of a second embodiment of a wall base showing my new design;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevation view thereof;

FIG. 11 is a right side elevation view thereof;

FIG. 12 is a rear elevation view thereof;

FIG. 13 is a left side elevation view thereof; and,

FIG. 14 is a bottom plan view thereof.

The wall base is shown with a symbolic break in its length. The appearance of any portion of the wall base between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a wall base, as shown and described. 